Cities on both U.S. coasts are being hit with record flooding from extremely high king tides this week - and it’s only expected to get worse.

Social media videos show flooded backyards and roads in Florida . In Southern California, huge waves slammed the shores near multi-million-dollar homes, and Orange County’s Balboa Island Ferry was closed to vehicles because it was floating so high above the ramp.

The tides are largely fueled by the force of the pull of the full Hunter’s moon - but that’s just one part of the picture. Sea level rise due to human-caused climate change, this year’s super El Niño climate pattern and energy known as a Kelvin wave are all playing a role.

“I’ve lived here my whole life, and this is nuts,” Newport Beach resident Buddy Richley told KTLA on Tuesday . “It’s the highest tide I’ve seen.”

Here’s a look at why the flooding is happening and what to expect in the coming days:

Extremely high tides are lashing shores and flooding communities in California and Florida this week.…